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Hello,<br><br>
We would like to evaluate OpenSER to test interoperability with our
sip registrar platform - as our registrar does not handle NAT Traversal
we would like to use OpenSER as a <span class="nfakPe">mirror</span> <span class="nfakPe">proxy</span> . Basically we would like OpenSER to act as an Upper Registrar <span class="nfakPe">proxy</span> where all the sip messages would be forwarded to our registrar, based on the domain name used in the Register. ie: <br>
REGISTER 111@domain1.com -> forward to -> registrar_ip1<br>
REGISTER 222@domain2.com -> forward to -> registrar_ip2<br>
and so on...<br><br>
If a call is initiated, OpenSER should transparently handle NAT traversal
functionalities while forwarding the INVITE request to the proper registrar server.<br><br>
Below some detailed requirements:<br>
Upper Registration is the capability of a SBC to <span class="nfakPe">proxy</span>
Registrations towards an upstream Registrar. While it is necessary that all SIP
requests traverse the SBC for NAT continuity, Registrations should be
allowed to be relayed towards the upstream Registrar while the SBC
retains a copy of the AOR and masquerade on behalf of the UA that send
the registration request.<br><br>
Please let us know the best way to configure OpenSER to achieve this type of configuration.<br><br>
Thanks<br>
SB</div></div><br>
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